High-speed hBN/graphene/hBN room-temperature terahertz nano-receivers

Leonardo Viti,Alisson R. Cadore, David G. Purdie,Jakob E. Muench,Xinxin Yang,Kenji Watanabe,Takashi Taniguchi,Andrei Vorobiev,Jan Stake,Antonio Lombardo,Andrea C. Ferrari,Miriam S. Vitiello

user-5f8411ab4c775e9685ff56d3（2021）

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摘要

We report room temperature terahertz detection in hBN/graphene/hBN heterostructures. The obtained record combination of high-speed (response time < 1 ns) and high sensitivity (noise equivalent power ~ 100 pWHz-1/2) is enabled by the photo-thermoelectric effect.

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关键词

Terahertz radiation,Graphene,Noise-equivalent power,Field-effect transistor,Thermoelectric effect,Nano-,Optoelectronics,Heterojunction,Sensitivity (electronics),Materials science

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